JP3967452B2 - スペクトラム拡散無線伝送受信装置 - Google Patents
スペクトラム拡散無線伝送受信装置 Download PDFInfo
- Publication number
- JP3967452B2 JP3967452B2 JP6262298A JP6262298A JP3967452B2 JP 3967452 B2 JP3967452 B2 JP 3967452B2 JP 6262298 A JP6262298 A JP 6262298A JP 6262298 A JP6262298 A JP 6262298A JP 3967452 B2 JP3967452 B2 JP 3967452B2
- Authority
- JP
- Japan
- Prior art keywords
- spread spectrum
- antenna
- received signal
- wireless transmission
- delay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- 230000005540 biological transmission Effects 0.000 title claims description 23
- 230000010287 polarization Effects 0.000 claims description 54
- 238000012545 processing Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 9
- 238000012937 correction Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
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- 230000000694 effects Effects 0.000 description 10
- 238000010295 mobile communication Methods 0.000 description 10
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Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0845—Weighted combining per branch equalization, e.g. by an FIR-filter or RAKE receiver per antenna branch
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0891—Space-time diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/10—Polarisation diversity; Directional diversity
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6262298A JP3967452B2 (ja) | 1998-03-13 | 1998-03-13 | スペクトラム拡散無線伝送受信装置 |
US09/260,013 US6480526B1 (en) | 1998-03-13 | 1999-03-02 | Spread spectrum receive apparatus |
DE1999634041 DE69934041T2 (de) | 1998-03-13 | 1999-03-12 | Spreizspektrumempfangsgerät mit Pfad- und Raumdiversität |
EP19990301922 EP0942540B1 (fr) | 1998-03-13 | 1999-03-12 | Appareil de réception à spectre étalé avec diversité de voie et d'espace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6262298A JP3967452B2 (ja) | 1998-03-13 | 1998-03-13 | スペクトラム拡散無線伝送受信装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11261525A JPH11261525A (ja) | 1999-09-24 |
JP3967452B2 true JP3967452B2 (ja) | 2007-08-29 |
Family
ID=13205613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6262298A Expired - Fee Related JP3967452B2 (ja) | 1998-03-13 | 1998-03-13 | スペクトラム拡散無線伝送受信装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US6480526B1 (fr) |
EP (1) | EP0942540B1 (fr) |
JP (1) | JP3967452B2 (fr) |
DE (1) | DE69934041T2 (fr) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6584144B2 (en) * | 1997-02-24 | 2003-06-24 | At&T Wireless Services, Inc. | Vertical adaptive antenna array for a discrete multitone spread spectrum communications system |
US6359923B1 (en) * | 1997-12-18 | 2002-03-19 | At&T Wireless Services, Inc. | Highly bandwidth efficient communications |
US7496132B2 (en) * | 1999-03-15 | 2009-02-24 | Kg Electronics Inc. | Pilot signals for synchronization and/or channel estimation |
US7643540B2 (en) * | 1999-03-15 | 2010-01-05 | Lg Electronics Inc. | Pilot signals for synchronization and/or channel estimation |
KR100294711B1 (ko) * | 1999-03-15 | 2001-07-12 | 서평원 | 최적의 파일럿 심볼을 이용한 프레임 동기 방법 |
US6791960B1 (en) | 1999-03-15 | 2004-09-14 | Lg Information And Communications, Ltd. | Pilot signals for synchronization and/or channel estimation |
US6721299B1 (en) * | 1999-03-15 | 2004-04-13 | Lg Information & Communications, Ltd. | Pilot signals for synchronization and/or channel estimation |
US7012906B1 (en) * | 1999-03-15 | 2006-03-14 | Lg Information & Communications, Ltd. | Pilot signals for synchronization and/or channel estimation |
EP1104121A1 (fr) * | 1999-11-23 | 2001-05-30 | Siemens Aktiengesellschaft | Station radio pour recevoir des signaux en utilisant la diversité d'antennes et un récepteur RAKE |
FI19992734A (fi) * | 1999-12-20 | 2001-06-21 | Nokia Networks Oy | Menetelmä hajaspektrisignaalin vastaanottamiseksi ja vastaanotin |
EP1117185A1 (fr) | 2000-01-14 | 2001-07-18 | Lucent Technologies Inc. | Procédé et récepteur du type RAKE pour la poursuite de codes dans un système de communication à AMDC |
EP1117186A1 (fr) * | 2000-01-14 | 2001-07-18 | Lucent Technologies Inc. | Récepteur adaptatif à poursuite de codes du type RAKE pour communication à AMDC |
US6754511B1 (en) | 2000-02-04 | 2004-06-22 | Harris Corporation | Linear signal separation using polarization diversity |
EP1130792A1 (fr) * | 2000-03-03 | 2001-09-05 | Lucent Technologies Inc. | Méthode et récepteur de type rake pour l'estimation du vecteur de phase dans des systèmes de communication |
EP1162755B1 (fr) * | 2000-06-06 | 2006-05-17 | Lucent Technologies Inc. | Filtre apparié au code pour un récepteur radio à AMDC avec diversité |
JP3464645B2 (ja) | 2000-08-30 | 2003-11-10 | 松下電器産業株式会社 | 無線受信装置 |
US6448547B1 (en) * | 2001-01-24 | 2002-09-10 | Applied Optoelectronics, Inc. | Method for determining photodiode performance parameters |
FR2833784B1 (fr) | 2001-12-18 | 2004-02-13 | Thales Sa | Procede d'antibrouillage pour recepteur de signaux radioelectriques a spectre etale |
FI20021000A0 (fi) * | 2002-05-28 | 2002-05-28 | Nokia Corp | Pilotti radiojärjestelmässä |
FR2845540B1 (fr) * | 2002-10-03 | 2005-06-24 | Cit Alcatel | Procede de reception de signaux dans un systeme de telecommunications a repeteurs terrestres presentant une source complementaire |
US20060057969A1 (en) * | 2002-12-04 | 2006-03-16 | Wim Van Houtum | Delay diversity in a wireless communication system |
US20050043045A1 (en) * | 2003-08-18 | 2005-02-24 | Lucent Technologies, Inc. | Uplink timing in a wireless communications system |
JP4494250B2 (ja) * | 2005-02-18 | 2010-06-30 | 株式会社エヌ・ティ・ティ・ドコモ | 受信装置 |
JP4507909B2 (ja) * | 2005-02-21 | 2010-07-21 | 株式会社日立製作所 | チャネル密度を適応的に制御する基地局装置、および制御方法 |
US8948702B2 (en) | 2009-06-15 | 2015-02-03 | Agc Automotive Americas R&D, Inc. | Antenna system and method for optimizing an RF signal |
US8855172B2 (en) * | 2011-12-09 | 2014-10-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Non-redundant equalization |
CN105209274B (zh) | 2013-03-15 | 2018-01-02 | Agc汽车美洲研发公司 | 具有在透明区域中形成的性能提升狭缝的窗户组件 |
EP3276378B1 (fr) | 2016-07-25 | 2020-10-14 | ADVA Optical Networking SE | Dispositif et procédé permettant d'extraire des informations temporelles à partir d'un signal radio |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3889403T2 (de) * | 1987-09-24 | 1994-09-29 | Fujitsu Ltd | Identifizierungssystem mit Funkfrequenzen. |
US5513176A (en) * | 1990-12-07 | 1996-04-30 | Qualcomm Incorporated | Dual distributed antenna system |
FR2699008B1 (fr) * | 1992-12-04 | 1994-12-30 | Alcatel Espace | Antenne active à synthèse de polarisation variable. |
US5481570A (en) * | 1993-10-20 | 1996-01-02 | At&T Corp. | Block radio and adaptive arrays for wireless systems |
US5742583A (en) * | 1994-11-03 | 1998-04-21 | Omnipoint Corporation | Antenna diversity techniques |
US5563610A (en) * | 1995-06-08 | 1996-10-08 | Metawave Communications Corporation | Narrow beam antenna systems with angular diversity |
JPH0974372A (ja) | 1995-09-04 | 1997-03-18 | Matsushita Electric Ind Co Ltd | スペクトラム拡散無線伝送受信装置 |
JP2924730B2 (ja) * | 1995-09-13 | 1999-07-26 | 日本電気株式会社 | 信号受信方法 |
WO1997024818A1 (fr) * | 1995-12-28 | 1997-07-10 | Qualcomm Incorporated | Procede et appareil pour installer une diversite d'antennes dans un radiotelephone portable |
JP3034481B2 (ja) | 1996-03-21 | 2000-04-17 | エヌ・ティ・ティ移動通信網株式会社 | 移動通信方法および基地局装置と移動局装置 |
JP3447897B2 (ja) * | 1996-08-20 | 2003-09-16 | 松下電器産業株式会社 | Cdma無線通信装置 |
JP3795984B2 (ja) * | 1996-12-20 | 2006-07-12 | 富士通株式会社 | 無線受信機 |
JPH10247869A (ja) * | 1997-03-04 | 1998-09-14 | Nec Corp | ダイバーシティ回路 |
US6185408B1 (en) * | 1997-09-03 | 2001-02-06 | Motorola, Inc. | Method and apparatus for mitigating the effects of a communications channel using polarized signals |
US6061336A (en) * | 1997-09-30 | 2000-05-09 | Qualcomm Incorporated | Polarization enhanced CDMA communication system |
US6259687B1 (en) * | 1997-10-31 | 2001-07-10 | Interdigital Technology Corporation | Communication station with multiple antennas |
US6125109A (en) * | 1998-02-24 | 2000-09-26 | Repeater Technologies | Delay combiner system for CDMA repeaters and low noise amplifiers |
-
1998
- 1998-03-13 JP JP6262298A patent/JP3967452B2/ja not_active Expired - Fee Related
-
1999
- 1999-03-02 US US09/260,013 patent/US6480526B1/en not_active Expired - Fee Related
- 1999-03-12 DE DE1999634041 patent/DE69934041T2/de not_active Expired - Fee Related
- 1999-03-12 EP EP19990301922 patent/EP0942540B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0942540B1 (fr) | 2006-11-22 |
DE69934041T2 (de) | 2007-03-08 |
EP0942540A2 (fr) | 1999-09-15 |
JPH11261525A (ja) | 1999-09-24 |
DE69934041D1 (de) | 2007-01-04 |
EP0942540A3 (fr) | 2003-08-06 |
US6480526B1 (en) | 2002-11-12 |
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